Flora of North America species comparison

cauline;

petiolar bases essentially none;

blades narrowly spatulate or linear, 2–6 cm × 3–5(–8+) mm, margins entire, faces sparsely and minutely hispidulous or glabrate.

2–5+ cm.

8;

corollas yellow, 13–20 mm.

50–80+;

corollas proximally yellow, distally purplish, tubes 1–1.5 mm, throats campanulate, 4–4.5 mm, lobes ovate-deltate, 0.8 mm, jointed hairs mostly 0.3+ mm.

20–26, lanceolate- to narrowly triangular-attenuate, 6–10 mm, ± sericeous to villous, not ciliate with jointed hairs.

obpyramidal, 2.5–3 mm, hairs 2.5–3 mm, inserted at bases and on angles and faces;

pappi of 10 lanceolate, aristate scales 6–9 mm (scarious bases 4–5 × 0.8–1.5 mm).

setae 0.5–2.5 mm.

= 68, ca. 102.